US 2019/0292374 A1 · SILICON COATED METAL MICROPARTICLES, SILICON COMPOUND COATED METAL MICROPARTICLES, AND PRODUCTION METHOD THEREOF

Abstract

The present invention relates to silicon coated metal microparticles in which at least a part of a surface of a metal microparticle composed of at least one of metal elements or metalloid elements is coated with silicon, wherein the silicon coated metal microparticles are a product obtained by a reduction treatment of silicon compound coated precursor microparticles in which at least a part of a surface of a precursor microparticle containing a precursor of the metal microparticles is coated with a silicon compound, or silicon doped precursor microparticles containing a precursor of the metal microparticles. Because it is possible particularly to strictly control a particle diameter of the silicon compound coated metal microparticle by controlling conditions of the reduction treatment, design of a more appropriate composition can become facilitated, compared with a conventional composition, in terms of diversified usages and desired properties of silicon compound coated metal microparticles.

Claims20

Dependent claims

-20. (canceled)

Silicon compound coated metal microparticles in which at least a part of a surface of a metal microparticle composed of at least one of metal elements or metalloid elements is coated with a silicon compound,

wherein the silicon compound coated metal microparticles are one selected from the following (a) to (d):
(a) silicon compound coated metal microparticles obtained by a reduction treatment of silicon compound coated precursor microparticles in which at least a part of a surface of a precursor microparticle containing a precursor of the metal microparticles is coated with a silicon compound, followed by an oxidation treatment of a surface of the obtained silicon compound coated metal microparticles,
(b) silicon compound coated metal microparticles obtained by a reduction treatment of silicon doped precursor microparticles containing a precursor of the metal microparticles, followed by an oxidation treatment of a surface of the obtained silicon compound coated metal microparticles,
(c) silicon compound coated metal microparticles obtained by a reduction treatment of silicon compound coated precursor microparticles in which at least a part of a surface of a precursor microparticle having a primary particle diameter of 100 nm or less containing a precursor of the metal microparticles is coated with a silicon compound, and
(d) silicon compound coated metal microparticles obtained by a reduction treatment of silicon doped precursor microparticles having a primary particle diameter of 100 nm or less containing a precursor of the metal microparticles.

2 more elements

Dependencies are inferred from the claim text.

Silicon coated metal microparticles, silicon compound coated metal microparticles, and production method thereof

Life of this patent

Silicon coated metal microparticles, silicon compound coated metal microparticles, and production method thereof

Life of this patent

Abstract

Claims20